Gateway on Pesticide Hazards and Safe Pest Management

Picloram

General Information

• Fact Sheet: Picloram.pdf
• Product Names:
  Trooper (Nufarm)
  Tordon (Dow)
  Grazon (Dow)

• Chemical Class: Pyridine compound herbicide
• Uses: Control of deeply rooted herbaceous weeds and woody plants in rights-of-way, forestry, rangelands, pastures, and small grain crops.
• Alternatives: Least-Toxic invasive weed managment, Organic agriculture
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Yes (7)
• Neurotoxicity: Not documented
• Kidney/Liver Damage: Yes (11)
• Sensitizer/ Irritant: Yes (8)
• Birth/Developmental: Not documented
• Detected in Groundwater: Yes (8)
• Potential Leacher: Yes (8)
• Toxic to Birds: Not documented
• Toxic to Fish/Aquatic Organisms: Yes (8)
• Toxic to Bees: Not documented

Additional Information

• Regulatory Status:
  • EPA Reregistration Eligibility Decision (RED) signed (3/1995)
• Supporting information:
  • The Safer Choice (Beyond Pesticides)
  • Montana's War on Weeds (Beyond Pesticides)
  • NCAP Picloram Factsheet (Northwest Coalition for Alternatives to Pesticides)
  • PAN Pesticides Database:Picloram (Pesticide Action Network)
  • Scorecard Picloram Factsheet (The Pollution Information Site)